seeing mountains of antarctica and south america and america, history of what of the great pyramids and finishing in the opera house. it was a fantastic journey. i loved it. jenna: wow, you squeezed it all in during a vacation. you have a personal mission about health and getting people fiscally active. they don't have to run marathons but what would you like people to do. >> i work for the scottish government. this is single best thing you can do for your health. 9% of the world's population died to lack of exercise. do 30 minutes walking five days a week or any form of exercise that is 0% off an early death. i'm from scotland so i like a bargain. jenna: how is it possible? how did you eat and sleep and jump on these planes? how did you do this? >> there was a lot of careful planning along with a fair bit of actual physical --. but the most difficult part was not the running, it was logistics. getting out of antarctica, making sure flights went and enough food to feed a 600 kilogram crocodile and getting sleep along the way. i managed to get it done and -- [inaudible] jenna: eating as